PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/19-14:28:00
G10     296.6          51.2                4.8 +/-    1.47       5.9 +/-    1.47  0.070 / 0.080
G14     210.4          11.1               -0.7 +/-   24.09      -1.8 +/-   24.09  0.070 / 0.070
G15     45.9           26.8                4.5 +/-    1.03       8.5 +/-    1.03  0.080 / 0.040
G18     4.3            65.6                4.4 +/-    1.29       4.8 +/-    1.29  0.090 / 0.050
G20     69.8           21.8                3.9 +/-    1.01       8.3 +/-    1.01  0.070 / 0.130
G21     102.2          70.9                4.9 +/-    1.12       5.1 +/-    1.12  0.070 / 0.120
G24     98.7           26.5                9.6 +/-    1.33      18.1 +/-    1.33  0.080 / 0.190
G27     299.4          34.9                4.0 +/-    1.14       6.4 +/-    1.14  0.070 / 0.200
G32     210.7          32.0                4.2 +/-    1.02       7.1 +/-    1.02  0.390 / 0.510